The 'mother hormone' — precursor to all major steroid hormones.
What is it
Pregnenolone is the precursor from which all major steroid hormones are derived, including cortisol, DHEA, testosterone, estrogen, and progesterone.
Why it's measured
Pregnenolone has been studied in research on cognitive function, mood, and longevity, though clinical interpretation remains an active area of investigation.
Reference range
Standard laboratory reference
Context-dependent ng/dL
Reference ranges vary by laboratory. Your individual reference range will appear on your test report and should be interpreted by your physician in the context of your overall health profile.
What results may indicate
Elevated
Clinical interpretation depends on context.
Lower
May reflect reduced steroidogenic capacity in research literature.
These associations are general. They are not a personal diagnosis or prediction. Discuss your individual results with your physician in the context of your full health profile.
When it's measured
Used in advanced hormonal evaluation and longevity-focused panels.
Related markers
Measured in
A complete look at your heart, hormones, metabolism, inflammation, and longevity systems — drawn at Quest or LabCorp, reviewed by a U.S.-licensed physician.
Explore the Apex Panel →This information is for general educational purposes only and is not medical advice. Lab results alone are not intended to diagnose, treat, or cure any condition and do not replace the advice of a healthcare provider. OPTML does not offer medical advice, a diagnosis, medical treatment, or any form of medical opinion.